Plasterboard Cutting

Plasterboard is such a flexible product, and it can meet most different interior lining requirements. Before fixing the plasterboard, quickly and neatly cutting full-sized plasterboard sheets into suitable sizes and shapes is the first important step. In this article, we will introduce the standard method to cut plasterboard properly and quickly.
石膏板是一种用途非常广泛的产品，能够满足各种不同的室内装饰需求。在固定石膏板前，将整张石膏板快速整齐地切割成合适尺寸和形状是首要关键步骤。本文将向您介绍正确切割石膏板的基本方法。

Tools Used for Cutting Plasterboard 用于切割石膏板的工具

Utility knife: scratch and cut plasterboard, most popular like Stanley Retractable Trimming knife
功能小刀：用于划破和切割石膏板面层纸，最常见的如Stanley的可伸缩裁边刀
Tape measurement: take measurement on plasterboard
卷尺：在石膏板上进行测量定位
Pencil: mark the cutting points on plasterboard
铅笔：在石膏板上标注切割点位
Metal T-square: lay on plasterboard and track knife to cut a straight line
金属丁字尺（俗称T尺）：平置于石膏板表面，引导刀具沿直线切割
Plasterboard saw: cut small opening or different shapes on sheets
石膏板手锯：在板材上切割小型开口或其它不同形状
Chalk line: draw straight or circle line
墨斗弹线：用于弹划直线或圆形线条

How to Cut Plasterboard 如何切割石膏板

Step 1: Position Plasterboard 石膏板定位

Lay the plasterboard on a flat solid platform, or lean it against a wall in an upright position. Make sure the whole sheet is flat and it’s better face side up (or the plasterer).
将石膏板平铺在稳固的平台上，或者竖直靠在墙上。确保整个板材表面平整，并且正面朝上（或根据石膏工的操作习惯）。

Step 2: Measure and Mark 测量和标记

Measure and mark the cutting points on both sides of the recessed edge and then snap a straight line by chalk line. Or lay the aluminum T-square on plasterboard surface so as to guide knife cutting (see the following diagram).
测量后，在石膏板的边缘处标记出切割点，并用墨斗弹线弹出一条直线。或者将铝制T形尺放在石膏板表面，用以引导刀具切割（见下图）。

Step 3: Cutting and Snap Plasterboard 切割和折断石膏板

Scoring the face linerboard with a knife along the marked line (or along the T-square track) from one recessed edge across to other edge.
沿着墨线（或沿着T型尺的轨迹）用刀具在石膏板的正面纸层上划痕，从一侧的凹边划到另一侧的边缘。

Lift the board up a bit, away from the platform (or floor), shake and bend or fold the smaller part sheet away from the cutting and you will see it split very neatly along the cutting line as you fold it backwards.
将石膏板稍微抬离平台（或地面），摇晃并弯曲较小部分的板材。当向后折叠时，石膏板会沿切割线整齐裂开。

You will also see a crease forming along the cut line on the opposite side of the board. Run your blade down the crease in the backing side paper to split the two pieces of the board in half very neatly.
你还会看到在石膏板的背面沿着切割线形成了一条折痕。沿着背面纸层上的折痕划动，就可以将石膏板的两部分非常整齐地分开。

Some skilled plasterers will snap the plasterboard back away from the scored face without cutting the back side paper.
有些熟练的石膏板工人会凭借技巧直接掰断用小刀划过的石膏板，省去切石膏板背面纸的步骤。

Details when Cutting Plasterboard 石膏板切割细节

We described the steps to score a straight line to get one appointed length rectangle plasterboard (by default 1.2m or 1.35m width). However quite often we need cut L-shape, triangle, or circle shape plasterboard. But all their methods and tools are basically similar to cut a rectangle sheet. Understanding this basic method, you can quite easily make any required shapes after more and more practice.
我们讲解了通过划痕以获得指定长度的矩形石膏板（默认宽度为1.2米或1.35米）的步骤。然而，我们经常需要切割L形、三角形或圆形的石膏板。但它们的方法和工具基本上与切割矩形板材相似。理解这种基本方法后，经过不断的练习，你可以相当轻松地制作出任何所需的形状。

Gyprock’s Impactchek drywall features a fiberglass mesh layer on its back, so this side has to be cut before breaking, or one can choose to saw from the front of the plasterboard.
Gyprock 的 Impactchek 石膏板背面带有玻璃纤维网层，因此在折断前必须切割这一面，或者可以选择从石膏板的正面进行锯切。

A jab saw is perfect for cutting holes or special shapes in plasterboard due to its ease of use and comfort.
由于小冲锯使用的便利性和舒适性，所以非常适合在石膏板上切割孔洞或特殊形状。

Plasterboard plane rasp can neaten plasterboard edges and form setbacks for drywall profile installation. But actually, we recommend 5-10mm flex gap is always allowed when you take and cut the measurements of plasterboard. Plane rasp is not needed when you can always cut and fit in the suitable size sheets.
石膏板刨刀可以修整石膏板边缘，并为石膏墙板型材安装凹槽。但实际上，我们建议在测量和切割石膏板时始终留出 5-10 毫米的弹性间隙。当您可以总是切割并安装合适尺寸的石膏板时，刨刀就显得多余了。

An aluminum T-square will help us create a clean and straight cut. This is the necessary tools for all plasterers.
铝合金 T 形尺有助于快速切割出干净、笔直的石膏板。这是所有石膏板工人必备的工具。